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Kristen Ainsworth
OWNER | TRAINER
Kristen started riding at the young age of 4 and made Blackstone (then called Treeline Stables) her home when she was just 6 years old. Her junior years were spent training with some of the top trainers across the country, including George Morris, while showing in Colorado and Texas. Competing up to 1.45m Jumpers, Kristen ended her impressive junior career with her personally trained jumper, McLeod, receiving USHJA Zone 7 HOTY (Horse of the Year) and an invitation to the Maclay Finals.
She went on to receive an NCAA D1 Athletic Scholarship for Oklahoma State University's Equestrian Team. Even as a Freshman, Kristen won multiple MVPs (now recognized as MOP) and traveled with the team to NCEA Nationals.
After college, Kristen worked her way up to CFO/COO for her family’s world-wide promotional product company, Knock-Out Specialties.
In 2006, Kristen received her USEF/USHJA professional status, specializing in jumpers, equitation, green/problematic horses, OTTBs, and rehabilitation. Currently a member with the North Texas Hunter Jumper Club, Kristen continues to be actively involved with both the local and national circuits.
Kristen resides on property with her high school sweetheart, Jason, their two daughters (Bridgette and Brooklynn), and their dogs, Lexi and Boss.
Brittany Aspen
TRAINER
Born and raised in Anchorage, Alaska, Brittany started riding when she was 8 years old. With a foundation of dressage lessons, she soon found a love for jumping and transitioned to Hunter/Jumper.
An advocate for therapeutic riding, she spent much of her youth volunteering for local programs and enrolled in 4H. She spent much of her amateur years competing in the local Rated circuit while remaining in Alaska.
Successfully competing on the IHSA Show Team and becoming Captain with the University of Wyoming, Brittany graduated with a Bachelors in Communications.
Prior to becoming a full-time hunter/jumper professional, Brittany worked at Equest Therapeutic Riding Center and received her advanced certification through PATH International (Professional Association of Therapeutic Horsemanship). Transitioning to a pro with USEF/USHJA in 2010, Brittany specializes in core fundamentals, equitation, and hunters. She loves to teach levels Beginner - 3', both kids and adults.
Brittany owns one horse at Blackstone, Benny, and resides close by with her husband, Bronson, their son James, and their four fur-children: dogs, Milo and Molly, and cats, Shrek, Daisy, and Oliver.
Zoe Green
TRAINER
Horses have been part of my life since I was six yrs-old, and I spent most of my childhood growing up in the barn. Those early years gave me a strong foundation in equine care, horsemanship, and training, including hands‑on experience with several project horses. I also assisted at a small therapeutic riding center during its early development, which deepened my appreciation for the connection between horses and riders of all abilities.
As soon as I was old enough, I stepped into my first barn role as a working student, where I expanded my skills in daily care, grooming, feeding, tacking, and supporting training rides and lessons. That experience sparked my passion for instruction, eventually leading me to a well‑established lesson program. There, I taught a wide range of students—from five‑year‑olds experiencing their first pony ride to adults in their sixties returning to the sport. I taught every level from “never touched a horse before” to riders learning jumping foundations. I’m especially known for my patient, safety‑focused approach and my ability to help nervous riders overcome fear, build confidence, and enjoy steady progress in the saddle.
My instruction is shaped by mentorship from a variety of incredible horsemen and horsewomen, each offering something unique. Training under an internationally recognized dressage professional, along with guidance from skilled instructors across hunter/jumper and foundational disciplines, has given me a well‑rounded understanding of correct basics, thoughtful progression, and adaptable teaching methods.
Outside the barn, I run a marketing business and enjoy spending time with my dogs, Coal and Sparki.
Jaimee Straley
CLIENT RELATIONS MANAGER
Jaimee started riding at 9 years old, training at Maryland Horse Center through high school. She participated in schooling shows and as many summer camps as her mom would pay for, eventually becoming a counselor. Before moving to Texas, Jaimee rode in the shadow of George Washington’s Mount Vernon Estate at Woodlawn Stables. She currently resides in Richardson with her husband, two daughters (Rory and Willow), their dog, Nezzie, and their cats, Carrot and Purcules.
Our Philosophy
Kristen and her team are dedicated to bringing out the best in every horse and rider who join our program, regardless of whether the rider is a beginner or advanced. With a strong emphasis on each rider's individual goals, our team creates a customized approach to teaching, training, and horsemanship, while ensuring that fundamental principles remain a priority throughout the rider's progress.
We take pride in offering outstanding, safe Lesson Academy horses for learning, as well as high-quality performance horses available for lease and show. Our approach emphasizes good nutrition, daily turnout, proper saddle fitting, and thorough routine care through both holistic and medicinal methods. Ultimately, our team prioritizes the well-being of the horses, allowing them to live happily and perform safely.
